Most wanted? Hmmm. I'm assuming we're talking about something that's NOT already modeled in Warbirds, since obviously we all expect AH to be at least that good

So...how about more realistic field attack and airplane scrambles?
Put little airplane "targets" out on the tarmac. Those would be the "spawn" points for the player-planes. Then, either a "man" model that you could "run" out to your plane, or a graphic view from the tower of a little "you" figure running out there. Both "mini-you" and the planes could be strafed and destroyed of course (I wouldn't charge you a life for having your "man" killed, but I WOULD bounce you back to the tower to start again--after all, running around in the open at a field under attack is not very smart)

When "you" get to one of the airplane shapes, your selected plane spawns there. Then, no instant perfect engine baloney. Start sequence should take at least a few seconds before you can start taxiing around. Make the "ground" you're parked on different from the runway surface, and give ONLY soft-field capable planes the ability to take off any which way--other types gotta taxi to the runway or risk getting stuck, or worse.
Meanwhile the guys attacking the field are attacking its MAIN assets: not the acks, not the fuel, but the PLANES. If they manage to kill em all, great; the field is now closed until somebody brings in another plane to "regenerate" one of the spawning points. If multiple plane targets are still "alive," you have defending planes spawning all over the field, not just in a predictable, "vulch me please" position on the runway.
Then, build in "anti-vulchfest" coding, so that if the vulch-dweebs left just one or two airplane targets intact so they could vulch those spots endlessly, 3 minutes later, two more spots would regenerate, doubling every 3 minutes until, say, half the original spots were active again (airplanes from the hangars being scrambled).
Man, I love this idea! Wish someone would try it

OK, least wanted feature: airframe shake when hit seems kinda useless

Not too fired up about complex engine and prop controls either, but I sense the tide is against me

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